Underground PEHD rainwater tank TWINBLOC 3500L with basket filter 1135005423

Rainwater tanks – a solid solution for water storage

This TWINBLOC underground rainwater tank with a capacity of 3500 liters is an excellent choice for both installers and end-users looking for a reliable rainwater harvesting system. Made of durable high-density polyethylene (HDPE), it ensures long-lasting and trouble-free operation. The design based on two cylinders guarantees stability and resistance to loads, allowing even passenger cars to drive over the installed tank.

Construction and equipment

The TWINBLOC tank is distinguished by a monolithic, seamless construction, which minimizes the risk of leaks and ensures tightness. The set includes everything you need for the proper functioning of the system: a telescopic inspection chamber with a durable lid (with a load capacity of up to 200 kg), DN100 connection fittings to facilitate connection to the installation, an overflow siphon to prevent overfilling, and a basket filter in the inspection chamber that traps contaminants. Additionally, the tank has protection against access by small animals.

Application and advantages

The TWINBLOC tank is an ideal solution for:

• Collecting rainwater for watering the garden, washing the car or flushing toilets.
• Reducing water consumption from the water supply and lowering bills.
• Ecological management of water resources.
• Installation in areas with a high water table – the tank can be placed in groundwater up to half its height.

Why choose TWINBLOC?

• Durability: Made of high-quality PE-HD resistant to mechanical damage and corrosion.
• Stability: The design with two cylinders ensures stability under soil pressure and allows vehicles to pass over it.
• Easy installation: The simple construction allows for quick and easy installation, and the ability to connect multiple tanks provides flexibility in adapting the capacity to individual needs.
• Complete equipment: The set includes all the necessary elements for the proper functioning of the system.
• Long warranty: The manufacturer offers as long as 20 years warranty on the tank, which proves its high quality and reliability.
• Filtration: The basket filter in the access shaft effectively stops leaves, branches and other contaminants, providing clean water.
• Height adjustment: The telescopic inspection chamber allows you to adjust the height to the installation depth.